PDF(Pubmed)
Abstract：
OBJECTIVE: This study examined the repeated bout effect of two resistance training bouts on cycling efficiency and performance.
METHODS: Ten male resistance-untrained cyclists (age 38 ± 13 years; height 180.4 ± 7.0 cm; weight 80.1 ± 10.1; kg; VO2max 51.0 ± 7.6 ml.kg-1.min-1) undertook two resistance training bouts at six-repetition maximum. Blood creatine kinase (CK), delayed-onset of muscle soreness (DOMS), counter-movement jump (CMJ), squat jump (SJ), submaximal cycling and time-trial performance were examined prior to (Tbase), 24 (T24) and 48 (T48) h post each resistance training bout.
RESULTS: There were significantly lower values for DOMS (p = 0.027) after Bout 2 than Bout 1. No differences were found between bouts for CK, CMJ, SJ and submaximal cycling performance. However, jump height (CMJ and SJ) submaximal cycling measures (ventilation and perceived exertion) were impaired at T24 and T48 compared to Tbase (p < 0.05). Net efficiency during submaximal cycling improved at Bout 2 (23.8 ± 1.2) than Bout 1 (24.3 ± 1.0%). There were no changes in cycling time-trial performance, although segmental differences in cadence were observed between bouts and time (i.e. Tbase vs T24 vs T48; p < 0.05).
CONCLUSIONS: Cyclists improved their cycling efficiency from Bout 1 to Bout 2 possibly due to the repeated bout effect. However, cyclists maintained their cycling completion times during exercise-induced muscle damage (EIMD) in both resistance training bouts, possibly by altering their cycling strategies. Thus, cyclists should consider EIMD symptomatology after resistance training bouts, particularly for cycling-specific technical sessions, regardless of the repeated bout effect.
METHODS: Ten male resistance-untrained cyclists (age 38 ± 13 years; height 180.4 ± 7.0 cm; weight 80.1 ± 10.1; kg; VO2max 51.0 ± 7.6 ml.kg-1.min-1) undertook two resistance training bouts at six-repetition maximum. Blood creatine kinase (CK), delayed-onset of muscle soreness (DOMS), counter-movement jump (CMJ), squat jump (SJ), submaximal cycling and time-trial performance were examined prior to (Tbase), 24 (T24) and 48 (T48) h post each resistance training bout.
RESULTS: There were significantly lower values for DOMS (p = 0.027) after Bout 2 than Bout 1. No differences were found between bouts for CK, CMJ, SJ and submaximal cycling performance. However, jump height (CMJ and SJ) submaximal cycling measures (ventilation and perceived exertion) were impaired at T24 and T48 compared to Tbase (p < 0.05). Net efficiency during submaximal cycling improved at Bout 2 (23.8 ± 1.2) than Bout 1 (24.3 ± 1.0%). There were no changes in cycling time-trial performance, although segmental differences in cadence were observed between bouts and time (i.e. Tbase vs T24 vs T48; p < 0.05).
CONCLUSIONS: Cyclists improved their cycling efficiency from Bout 1 to Bout 2 possibly due to the repeated bout effect. However, cyclists maintained their cycling completion times during exercise-induced muscle damage (EIMD) in both resistance training bouts, possibly by altering their cycling strategies. Thus, cyclists should consider EIMD symptomatology after resistance training bouts, particularly for cycling-specific technical sessions, regardless of the repeated bout effect.
摘要：
目的：本研究检查了两次阻力训练对自行车效率和性能的反复回合影响。
方法：10名未经训练的男性阻力自行车手（年龄38±13岁；身高180.4±7.0cm；体重80.1±10.1；kg；VO2max51.0±7.6ml。kg-1.min-1）进行了两次阻力训练，最多可重复六次。血肌酸激酶(CK),肌肉酸痛延迟发作（DOMS），反运动跳跃（CMJ），深蹲跳跃(SJ),次最大循环和时间试验性能在(Tbase)之前进行了检查，每次阻力训练后24(T24)和48(T48)小时。
结果：Bout2后的DOMS值（p=0.027）明显低于Bout1。CK的发作之间没有发现差异，CMJ,SJ和次最大循环性能。然而,与Tbase相比，T24和T48时的跳跃高度（CMJ和SJ）次最大循环测量值（通气和感知劳力）受损（p<0.05）。次最大循环期间的净效率在Bout2（23.8±1.2）比Bout1（24.3±1.0％）提高。自行车计时赛性能没有变化，尽管在比赛和时间之间观察到节奏的分段差异（即TbasevsT24vsT48；p<0.05）。
结论：自行车运动员将其循环效率从Bout1提高到Bout2，这可能是由于反复的回合效应。然而,骑自行车的人在两次阻力训练中都在运动诱发的肌肉损伤（EIMD）期间保持了他们的自行车完成时间，可能是通过改变他们的自行车策略。因此，骑自行车的人应该在抵抗训练后考虑EIMD症状，特别是自行车特定的技术会议，不管重复的回合效应。
方法：10名未经训练的男性阻力自行车手（年龄38±13岁；身高180.4±7.0cm；体重80.1±10.1；kg；VO2max51.0±7.6ml。kg-1.min-1）进行了两次阻力训练，最多可重复六次。血肌酸激酶(CK),肌肉酸痛延迟发作（DOMS），反运动跳跃（CMJ），深蹲跳跃(SJ),次最大循环和时间试验性能在(Tbase)之前进行了检查，每次阻力训练后24(T24)和48(T48)小时。
结果：Bout2后的DOMS值（p=0.027）明显低于Bout1。CK的发作之间没有发现差异，CMJ,SJ和次最大循环性能。然而,与Tbase相比，T24和T48时的跳跃高度（CMJ和SJ）次最大循环测量值（通气和感知劳力）受损（p<0.05）。次最大循环期间的净效率在Bout2（23.8±1.2）比Bout1（24.3±1.0％）提高。自行车计时赛性能没有变化，尽管在比赛和时间之间观察到节奏的分段差异（即TbasevsT24vsT48；p<0.05）。
结论：自行车运动员将其循环效率从Bout1提高到Bout2，这可能是由于反复的回合效应。然而,骑自行车的人在两次阻力训练中都在运动诱发的肌肉损伤（EIMD）期间保持了他们的自行车完成时间，可能是通过改变他们的自行车策略。因此，骑自行车的人应该在抵抗训练后考虑EIMD症状，特别是自行车特定的技术会议，不管重复的回合效应。
